Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 958 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
5. 5.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
6. 6.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
8. 8.🔍 Which is the odd one out? (a) a book (b) your hand (c) butter paper (d) a wooden board
9. 9.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
11. 11.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) clear plastic film (b) a book (c) clean water (d) air
13. 13.🔦 Which of these is transparent? (a) oily paper (b) butter paper (c) a book (d) clean water
14. 14.🔦 Which of these is transparent? (a) your hand (b) tissue paper (c) clear glass (d) a wooden board
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
16. 16.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a clock to check (d) a battery cell
17. 17.True or false: butter paper is translucent. (a) False (b) True
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same spot (c) shadow length
19. 19.True or false: butter paper is opaque. (a) False (b) True
20. 20.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
21. 21.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) shadow length (d) the same spot
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
26. 26.True or false: yeast is needed for the shadow clock. (a) True (b) False
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
28. 28.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) a mirror
29. 29.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
32. 32.🔦 Which of these is transparent? (a) a steel plate (b) oily paper (c) tissue paper (d) clear plastic film
33. 33.🔦 Which of these is opaque? (a) air (b) clear glass (c) butter paper (d) a steel plate
34. 34.True or false: clear plastic film is translucent. (a) True (b) False
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
36. 36.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) yeast (d) a mirror
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
39. 39.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up

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